Top similar games like Guardian Zero:

Core Breach is a fast-paced, twin-stick arcade shooter in a pixel art style. Play as a Trojan worm virus, outmaneuvering and destroying antivirus enemies. Upgrade your worm with powerful attacks and skills as you fight to breach the CPU core and uncover its secrets

The Squids are here - but your soldiers are ready. Grow your squad up to 4 members by rescuing survivors. Obtain the best weapons, support, and equipment you can by gathering Squid Samples. Become a force to be reckoned with, one the Squids will fear for generations to come.

Space Ace is a 2D top-down shooter that focuses on upgrading your ship to fight through levels of Bosses and smaller enemies. Play with keyboard + mouse or Xbox controller.

Void Prison is a fast paced, endless arcade twin stick shooter that puts you inside of an ever shrinking ring. Survive by fighting emerging enemies around you and don't get consumed by the void. Complete achievements to unlock new skins and powerups and get on top of the leaderboards!

Four WARDEN contractors against an alien incursion. A 2D roguelite run-and-gun: procedurally assembled zones, stacking gear that gets out of hand, and five bosses that fill the screen. Solo or 2-4 player co-op.

AGIS - A Game In Space is a top-down twin-stick-shooter.

Cards and Guns is a top-down arena shooter roguelite, where you’ll have to defeat hordes of creatures. Choose from a variety of cards and upgrades to create unique builds and survive to the end.

Tear across the desert, obliterating wave after wave with your nuclear missile powered dual-wielding hover tank. A tight, punchy wave survival sandbox with ludicrous weaponry, exhilarating rocket-tank combat, and daily leaderboards!

Split Drive is a roguelite arena shooter where you have to find your way home through a hostile galaxy, numerous locations and a variety of bosses, all generated procedurally.

Fight through relentless waves of hostile robots in this fast-paced roguelite twin-stick shooter. Earn credits, purchase permanent upgrades, master multiple game modes, and chase your highest score. Every run is a chance to survive longer and push your limits.

a fast-paced bullet heaven auto-shooting action platformer

CYBRID: Survivor - is a single-player shooter with survival elements. Use your entire arsenal, fight hordes of robots, mine resources and unlock powerful upgrades as you clean up the streets at night. You are alone, against everyone!

Think fast, kill faster. Blast through shifting alien hellscapes in this roguelite platform-twin stick shooter, switching between Soldier precision and demonic destruction. Survive relentless hordes, brutal bosses, and endless roguelite chaos.

Battle time and terror in a shoot & survive extraction roguelite. Select your hero and survive the relentless cosmic surge. Shoot, level up, topple bosses, and amplify your powers to cosmic levels. Embrace the Blastard within and unlock new heroes, powers, and perks to use on future runs.

Take over your grandma's company Dash Bang Rift LLC in this high-stakes action roguelite/roguelike where you out-math the apocalypse. Experiment with volatile Rift Mod stacks to transform standard weapons into god-tier destruction before the rift overwhelms you. Finish your shift—or die trying.

Crush, smash, and eat thousands of enemies showing humanity what the meaning of destruction is! Kaiju Catastrophe is an arcade game with roguelite mechanics. Mutate devastating weapons, unlock permanent evolutions, and wreak havoc with a variety of monsters to tear humanity apart!

Play as a Magical Arrow and Fight for your Survival in the Space. A fast-paced arcade game packed with relentless and sci-fi enemy waves. Dodge, Attack & Upgrade and stand until the end in this Short & Minimally Designed Action Arena.

Laserpunk is a fast-paced top-down action roguelite where every round forces you to adapt. Blast through waves of enemies with powerful lasers, choose dangerous flaws, build around their weaknesses, and survive as long as you can.

The frontier has a monster problem, a bandit problem, and apparently a "your life expectancy" problem. Survive the horde, loot the General Store, and die with style. Refunds not available. Neither is mercy.

A top-down roguelite inside one sealed chamber. Ten levels, one hundred waves, and upgrades that compound into something the facility was not built to contain. The run ends when you break — or when the reaction does.

Starwave Defender is an intense twin-stick shooter based around wave survival. Dodge swarms of enemies while exploring procedurally generated levels and collecting resources to upgrade your ship. You have a limited number of ships; make your time count, Defender.

Find powerful weapons, fight monsters and discover the secrets of the Zone. Each weapon is different.

Mow down the alien hordes, scout for resources and survive. Dreadnought is a mix of Action Tower Defense Survival and Shoot 'Em Up Bullet Hell where you control the ships turrets & defend against waves of enemies. Choose your weapons, upgrade your ship & brace yourself, the horde is coming.

A fast, neon twin-stick arena shooter: you aim, your ship auto-fires. Dash through bullets, hold off ever-bigger waves and pick roguelite upgrades each wave. 8 ships, 10 worlds, 7 modes.

Comet Force is a Space Arena Shooter Action Roguelite. Build your camp, recruit to compose and grow your troop, collect upgrades and unique effects, fight enemies and bosses, and choose how the threat evolves. Keep your troop strong enough to survive all waves and close off the anomaly.

Frontline Survivors is an intense top-down shooter with roguelite elements that puts you in the boots of a soldier fighting for survival on the battlefield. With countless enemies coming at you from all sides, you will need to use all your skills and strategy to stay alive.

Breach, upgrade, and unleash chaos in this roguelike shooter where every run builds new gunplay possibilities. Stack wild attachments, forge broken weapon combos, and dive into explosive firefights against a ruthless criminal empire.

A neon pixel rhythm-arcade roguelite. Charge and launch orbit blades, bounce through enemy waves, build synergies, trigger FEVER bursts, master clean rebounds, survive evolving boss patterns, and chase high-score survival runs on Steam Leaderboards.

Flight of the Athena is a twin-stick shooter + roguelite; fight through the procedurally generated campaign to earn new craft, weapons and upgrades as you take on the enemy fleet to destroy their central command.

Eyeb is an action packed tower defense-like that pits a young space cadet's bionic eyeball against a harrowing nano-bot invasion. Push out, explore, power up and drop a trillion towers for the glory of facing off with the diabolical Nano-Lord. You can also go fishing in space.

"Epsilon Zero" is a fast-paced top-down action roguelike shooter where every mission is an all-out assault. Use devastating weapon combinations, unlock powerful upgrades, adapt your tactics, and exterminate everything standing in your way.

80 waves. 8 bosses. 17 logs that will make you question everything you've been defending. Locus Protocol is a twin-stick bullet heaven with an adaptive AI Director and a horror story hidden inside a cozy geometric shell.

Krampus is Coming! Grab your Shotgun, finish your hot punch and don't forget your mission: Save the Christmas! Big Trouble in Little Chimney is highly-addictive and fast paced arena bullet-hell shooter.